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-rw-r--r--drivers/gpu/drm/drm_buddy.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_buddy.c b/drivers/gpu/drm/drm_buddy.c
index f3a6ac908f81..5ebdd6f8f36e 100644
--- a/drivers/gpu/drm/drm_buddy.c
+++ b/drivers/gpu/drm/drm_buddy.c
@@ -771,8 +771,12 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
return -EINVAL;
/* Actual range allocation */
- if (start + size == end)
+ if (start + size == end) {
+ if (!IS_ALIGNED(start | end, min_block_size))
+ return -EINVAL;
+
return __drm_buddy_alloc_range(mm, start, size, NULL, blocks);
+ }
original_size = size;
original_min_size = min_block_size;